Home / 103,399,787.88-155,113,863.48-45,890,785.80

Finding the Fourth Proportional to 103,399,787.88, 155,113,863.48 and 45,890,785.80

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Solution

The fourth proportional to 103,399,787.88, 155,113,863.48 and 45,890,785.80 is: 68,842,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,399,787.88 : 155,113,863.48 = 45,890,785.80 : x
  2. Step 2: Convert to fraction form
    103,399,787.88/155,113,863.48 = 45,890,785.80/x
  3. Step 3: Cross multiply
    103,399,787.88x = 155,113,863.48 × 45,890,785.80
  4. Step 4: Simplify right side
    103,399,787.88x = 7,118,297,083,571,122
  5. Step 5: Solve for x
    x = 7,118,297,083,571,122/103,399,787.88
  6. Step 6: Final answer
    x = 68,842,472.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.